anyone have any ideas for a 1 1/2 piston? im looking to make a coaxil with a 1 1/2 inch chamber and a half inch barrell. just wondering if anyone had any quick piston ideas. i could also try a diaphram too but i dont know what i would use.

That's the only thing I've heard of working besides neoprene washers. Some mousepad bases might work. I prefer pistons because you can always make them bigger, with diapraghms they only get cut smaller on accident.

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